Re: Billing coding problem

amount_to_bill = flat_fee +

                         (CASE WHEN ((capacity > 10) AND (capacity <= 20))
THEN (capacity - 10)*rate1
                                    WHEN (capacity > 20)  THEN 10*rate1
                                    ELSE 0
                          END) +
                         (CASE WHEN ((capacity > 20) AND (capacity <= 50))
THEN (capacity - 20)*rate2
                                    WHEN (capacity > 50)  THEN 30*rate2
                                    ELSE 0
                          END) +
                         (CASE WHEN (capacity > 50)  THEN (capacity -
50)*rate3
                                    ELSE 0
                          END) ;

HTH,
Igor Neyman

On Fri, Aug 19, 2011 at 11:07 AM, Sandra Becker <sbecker6925_at_gmail.com>wrote:

> Oracle - EE 10.2
>
> I have been asked to code an Apex application to replace our current poorly
> performing, inaccurate and woefully inadequate billing procedures, most of
> which is manual. Very sad state of affairs for a software company, but
> there you have it. The problem stems from the way we bill certain customers
> for archiving their data. Billing is a tiered structure:
>
> First 10g - flat fee
> 11-20g - rate 1
> 21-50g - rate 2
> Over 50g - rate 3
>
> To further complicate, each rate level bills only for the gig that fall in
> that level. Two examples:
>
> customer has 15g; they would be billed flat fee + (5g * rate1).
>
> customer has 200g; they would be billed flat fee + (10 * rate1) +
> (30 * rate2) + (150 * rate3)
>
> My math skills not being what they should be, I'm having difficulty coming
> up with the code to accurately calculate the billing amount. Any help will
> be greatly appreciated.
>
> --
> Sandy
> Transzap, Inc.
>

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